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aya/ebpf/aya-ebpf/build.rs

44 lines
1.2 KiB
Rust

fn main() {
println!("cargo:rerun-if-env-changed=CARGO_CFG_BPF_TARGET_ARCH");
println!("cargo:rerun-if-env-changed=HOST");
print!("cargo::rustc-check-cfg=cfg(bpf_target_arch, values(");
for arch in [
"aarch64",
"arm",
"loongarch64",
"mips",
"powerpc64",
"riscv64",
"s390x",
"x86_64",
] {
print!("\"{arch}\",");
}
println!("))");
if let Some(arch) = std::env::var_os("CARGO_CFG_BPF_TARGET_ARCH") {
let arch = arch.to_str().unwrap();
println!("cargo:rustc-cfg=bpf_target_arch=\"{arch}\"");
} else if let Some(host) = std::env::var_os("HOST") {
let host = host.to_str().unwrap();
let mut arch = host.split_once('-').map_or(host, |(arch, _rest)| arch);
if arch.starts_with("riscv64") {
arch = "riscv64";
}
println!("cargo:rustc-cfg=bpf_target_arch=\"{arch}\"");
}
println!("cargo::rustc-check-cfg=cfg(generic_const_exprs)");
check_rust_version();
}
#[rustversion::nightly]
fn check_rust_version() {
// TODO(https://github.com/rust-lang/rust/issues/141492): restore this.
// println!("cargo:rustc-cfg=generic_const_exprs");
}
#[rustversion::not(nightly)]
fn check_rust_version() {}